Vectors and Its Types
Trending Questions
Q.
What is the unit vector in physics?
Q.
An earth satellite is moving around the earth in a circular orbit. In such case, what is conserved?
force
linear momentum
angular momentum
velocity
Q. Two blocks each of mass m moving with equal speedvin opposite directions strike the opposite ends ofmass less spring placed between them. If Kis forceconstant of the spring, then the maximum compression-of the spring is :
Q. For the equilibrium situation shown. The strings are strong enough to with stand a maximum tension of 100 N.What is the largest value of W (in N) that they can support as shown?
Q. Show that if the particle moves only in x-y plane the angular momentum has only a z component
Q. the position (x) of a particle moving along x-axis varies with time (t) as x=t^{2 - 4t +5. The particle turns around at time?
Q. 16.To paint the side of a building a painter normally hosts himself up by pulling on the rope A as shown in figute.The paintercand tge platform together weigh 200N. The eope B can withstand 300N.find a)maximum acceleration of painter b)tension in rope A when painter is at rest
Q. A vector has magnitude and direction. Does it have a location in space ? Can it vary with time ? Will two equal vectors a and b at different locations in space necessarily have identical physical effects ? Give examples in support of your answer.
Q. A table with smooth horizontal surface is rotating at a speed w about its axis. A groove is made on the surface along a radius and a particle is gently placed inside the groove at a distance x from the centre. The speed of the particle with respect to the table as its distance from the centre become L is
Q. A disc of mass M kg and radius R metre is rotating at an angular speed of ω rad/s when the motor is switched off. Neglecting the friction at the axle, the force that must be applied tangentially to the wheel to bring it to rest in time is
Q. Can you associate vectors with (a) the length of a wire bent into a loop, (b) a plane area, (c) a sphere ? Explain.
Q. 37. In the given figure find out the acceleration each block
Q.
Angular momentum is
A scalar
A polar vector
An axial vector
None of these
Q. A disc rotating about its axis from rest, acquires speed500 rev/s in 4 seconds. The angle rotated by it duringthese four seconds (in radian) is
Q. a boy whose weight is 60 kg on the surface of earth.at which height above the earth his weight becomes 30 kg
Q. If a uniform string of length l and mass m slips off from the smooth table, then the maximum value of tension observed in te string is
Q. Find the angle between →A and →B in degrees.
- 150
- 180
- 130
- 30
Q.
what are collinear vectors
Q. what is Tork and angular momentum??
Q. The vector −→A is
- greater than →A in magnitude
- less than →A in magnitude
- in the same direction as →A
- in the direction opposite to →A
Q. 116.A car moving on a straight road AD, it have to reach at a point B in the field at a perpendicular distance l from point D. Velocity on road is V and velocity on field is ntimes slower than the velocity on road. Find the distance from point D where car turns it so that it reach point B in minimum time
Q. 14. A force + = (2+3j -5k) N acts at a point
74 = (2 +43 +7k)m. The torque of the force about
the point 7a = (i +2° +3k)m is
(1) (179 +5k – 3î) Nm (2) (21+4) - 6k) Nm
(3) (12ť – 5j +7ỉ) Nm (4) (13) – 22 – k) Nm
Q. When a fan is switched on, it makes 10 rotations in first 3s . How many rotations it will make in the next 3s [assuming uniform angular acceleration] ?
Q. magnitude of two forces at same point is F and angle between them is 120 degree so the magnitude of resultant force is
Q. Define Parallel Shift of Vector?
Class 11 Physics
Class 11 Physics
Q.
Which of the given vector is a negative vector?
Vector A
Vector B
There is no such thing as Negative Vector
None of these
Q. Tension force dimensional formula
Q. ntShow that the angular momentum about any point of a single particle moving with constant velocity remains constant throughtout the the motion .n
Q.
Two forces F1 and F2 are acting on a body . One force is double that of the other force and the resultant is equal to the greater force. Then the angle between the two forces is ?
Q.
Only purely rotating bodies can have angular momentum
A.TRUE
B.FALSE
- True
- False
